preface
On March 30, 2022, Black Shark released a new generation of game e-sports flagship mobile phone Black Shark 5 series, all mobile phones support 120W super flash charging technology, and also jointly launched the Black Shark 5 series China Aerospace Deep Customization Edition with China Aerospace Shenzhou Media, equipped with a series of aerospace-themed IP custom accessories.
Charging head network today disassembled is the Black Shark Star Stream GaN 30W fast charger, the charger using the Chinese space station theme decoration, the appearance is very distinctive, and the protocol support is extensive, the mainstream mobile phones have a good fast charging compatibility. The following charging head network will disassemble this charger to see how the internal material of this charger is.
Black Shark Star Stream 30W Gallium Nitride Fast Charge Out of the Box
The design of the product packaging box is the same as that of the Black Shark 120W charger, and the front is printed with the Black Shark logo, the charger's exterior map, name and conspicuous Chinese space station words.
Manufacturer information is printed on the back and a product nameplate sticker is attached.
The side is printed with a joint design of China Aerospace and BLACK SHARK.
The top of the package also has a security label from China Media.
Charger parameters are printed on the bottom.
The package contains a charger and instruction manual.
The charger adopts a white shell made of PC material, with a slightly convex top, and a transition of rounding between the sides of the waist and the edge of the top surface.
The front of the fuselage is printed with the black shark logo and the words of the Chinese space station, and the design is full of scientific and technological style.
The back is designed with the word BLACK SHARK and so on.
The waist shell is close-up, and it is treated by a brushed process, which feels good in the hand.
The charger is equipped with a fixed GB pin.
The charger nameplate is printed on the input housing
Model: BX04
Input: 100-240V~50/60HZ 0.8A
输出：5V3A、9V3A、12V2.5A、15V2A、20V1.5A、3.3-11V3A
Total output power: 30W
Manufacturer: Nanchang Black Shark Technology Co., Ltd
The charger has been CCC certified.
The top shell is high-gloss and smooth.
There is a single USB-C connector on the top, a red rubber core, and arrow logos printed on the sides.
The measured height of the charger body is 34.86mm.
The width is 32.12mm.
The thickness is 32.02mm.
Compared with Apple's 30W charger, the volume advantage is very obvious.
The size of the hand is intuitive.
The weight is about 44g.
The charger measured using the Chargelab POWER-Z KT002 supports QC2.0/3.0, AFC, FCP, SCP, PD3.0, PPS fast charging protocols.
In addition, it also has five fixed voltage gears of 5V3A, 9V3A, 12V2.5A, 15V2A and 20V1.5A, and two sets of PPS voltage gears of 3.3-11V3A and 3.3-16V2A.
Black Shark Starstream 30W Gallium Nitride Fast Charge Disassembly
After a detailed understanding of the appearance and performance of the Black Shark 30W charger, continue to disassemble it below to see how the internal materials work.
Pry open the charger housing along the input pins, and the AC input is crimped to the PCB via metal shrapnel to power.
Take out the charger PCBA module, you can see two small boards, capacitors, transformers placed in the space in the middle of the small board, making full use of the space.
The Black Shark 30W charger uses a combination of three small boards to weld, and the side welded small boards connect the primary and secondary.
The PCB dimensions are measured using a vernier caliper with a length of approximately 31.3mm.
The width is approximately 27.2mm.
The thickness is approximately 24.1mm.
Side view of the charger inside the use of a plastic cover for primary capacitor insulation, the use of insulation cover to make full use of the charger's internal space, to meet the small volume of high power density design.
Separate the charger primary desoldering and the plastic hood covers the primary and secondary filter capacitors separately for device insulation between primary stages. After observing the charger, it is found that it adopts a typical architecture of switching power supply wide range output, secondary protocol chip to control the output voltage. Let's start with the inputs to understand each component.
The inputs are welded with a safety resistor and a green NTC surge suppression resistor.
Remove all the components on the primary board, and introduce each component in turn starting from the input.
Input fuse close-up, jacket heat shrink tubing insulation.
Green NTC surge suppression resistance screen printing 5D-5, diameter 5mm, cold state resistance 5Ω.
Common mode inductive jacket heat shrink tubing, green magnetic ring, two-wire winding.
On the back of the primary board are the rectifier bridge and the main control chip.
The input rectifier bridge is from Wald, model WRMSB30M. With a specification of 3A1000V, this soft bridge can reduce the diode junction capacitance to achieve very little harmonic oscillation through a softer recovery curve and smoother shutdown characteristics.
Wald WRMSB30M specs.
The three high voltage filter capacitors are from Yongming, the KCD series, and the specifications are all 18μF 400V. KCD series capacitor products are a cost-effective fast charging capacity launched by Yongming in 2021, with the advantages of small size, high reliability, low leakage current, high ripple current and so on.
Differential mode I-beam inductor close-up, jacket heat shrinkable tube for suppressing high-frequency interference conduction of the charger.
The primary gallium nitride main control chip adopts the Nanxin SC3021D. The chip supports 170KHz high frequency GaN direct drive, designed for 30W Gallium nitride charger, in this scheme can use ATQ17/15 winding transformer, very cost-effective.
It is understood that Nanxin SC3021x meets all kinds of high-frequency QR fast charging needs, using a proprietary GaN direct drive design, eliminating external drivers or discrete driver parts; integrated segmented power supply mode, single-winding power supply, no need for complex power supply circuits; built-in high-voltage start and AC input Brown In/Out function, integrated X-cap discharge function.
Charging head network disassembly learned that Nanxin SC3021x is also used by Ruiyuan Industrial 33W 1A1C gallium nitride fast charging, REMAX 30W gallium nitride fast charging and other products. In addition, nanxin fast charging chip can be applied to chargers, car charging, mobile power, energy storage power supply and other products, has been Used by Anker PowerHouse II 400 outdoor power supply, Yubo 300W portable energy storage power supply, Samsung 45W PD fast charging car charging, Zimi 20 200W PD fast charging mobile power supply, Zimi 65W 2C1A desktop PD fast charging, Anker Nano 20W PD fast charger and dozens of other products, the quality has been highly recognized by customers.
The filter capacitor that powers the South Core Primary Master CHIP is 50V 10μF.
The output voltage feedback optocoupler, the chip Y capacitor, and the gallium nitride power chip are all soldered to the vertical platelet.
OR1009 optocoupler for output voltage regulation feedback. The protocol chip controls the conductivity of the phototransistor at the other end by controlling the light emitting intensity of the light-emitting diode inside the optocoupler, thereby regulating the feedback output voltage.
The CHIP Y capacitor comes from Sichuan Terry Xiang Technology Co., Ltd., which has the characteristics of small size and light weight, which is very suitable for high-density power products such as gallium nitride fast charging. The Black Shark 30W Gallium Nitride charger uses a smd Y capacitor number of TMY1222M.
Terry Xiang focuses on the research and development, production and sales of passive components, with a registered capital of 100 million yuan. There are two types of independent capacitor brands: SMD TRX and DIP TY capacitors, TRX will be committed to the research of ceramic materials, in order to expand the application of more categories, to provide customers with more solutions.
The charging head network learned that in addition to being used by dozens of high-power chargers such as Maddo 100W gallium nitride, OPPO 65W super flash-charge gallium nitride charger, Lenovo 90W gallium nitride fast charger, Nubia 65W gallium nitride charger, Beth 120W gallium nitride + silicon carbide PD fast charger and dozens of high-power chargers, it is also used in 20W mini fast chargers of brands such as Hailutong, First Guard, and Belkin, and the performance has been unanimously recognized by customers.
Gallium nitride power chip using Innoseco INN650DA04, withstand voltage 650V, conductivity 480mΩ (max), with high frequency and high efficiency, very low loss, fast active heat dissipation and other characteristics, while using DFN5 * 6 package, to achieve small size, high efficiency charger design.
Infonotic INN650DA04.
The INN650DA04 is the second generation of the InnoGaN series, which has previously been adopted by REMAX 30W Gallium Nitride Fast Charge. The first generation of Gallium Nitride power chip INN650D02 has been Pinsheng 65W 2C1A Gallium Nitride Fast Charge, Red Magic Mobile Phone 6 Pro Standard 120W PD Gallium Nitride Fast Charge, Shang Patrol 120W GaN Adapter, REMAX 100W GaN Charger, Momix 100W 2A2C GaN Fast Charge, Nubia 65W USB PD Deuterium Front Gallium Nitride Fast Charge, Fei frequency 65W PD Gallium Nitride Charger, Meizu 65W Gallium Nitride Charger, Lapo 65W PD gallium nitride fast charger, ROCK 65W 2C1A gallium nitride fast charger and other products are used, and the chip quality has been recognized by the market.
The transformer is integrally wound with horse-drawn tape insulation, and the output is made of multi-layer insulated wires.
The output board is hollowed out to place the transformer, the board front soldering protocol chip, VBUS switch tube, filter capacitor and synchronous rectifier tube.
The back of the board is welded with a synchronous rectifier controller and output current sampling resistor.
Synchronous rectifier controller using Nanxin Semiconductor SC3503, which is an adaptive turn-on detection and fast shutdown synchronous rectifier controller, no need for auxiliary coil power supply, output voltage can be as low as 0V, patented adaptive opening detection circuit to avoid synchronous rectifier mis-opening, compatible with a variety of MOS, with ultra-low quiescent current, support a variety of operating modes, support high-side and low-side synchronous rectification, peripheral components are very streamlined. Available in SOT23 package, it is suitable for wide range flyback adapter applications.
Nanxin SC3503 data information.
The charging head network disassembly learned that the chip has been used by Kexun mini 33W gallium nitride fast charge, image 65W gallium nitride charger, Nubia 30W gallium nitride fast charge, Hua Kesheng 65W 2C1A gallium nitride fast charge charger.
Synchronous rectifier tube from Xinfeihong, model FH1610G, NMOS, withstand voltage 100V, conductivity 7.8mΩ, using DFN5*6 package.
Synchronous rectifier output filtering solid capacitor close-up, specifications are 330μF 25V, Yongming NPX series solid capacitors, two in parallel. This series of capacitors has the characteristics of small size, low ESR, high allowable ripple current, and high reliability.
The charging head network learned that Yongming NPX series solid capacitors have previously been adopted by Hongdashun 65W 2C1A gallium nitride fast charge charger, Turas 24W 1A1C fast charger, Nubia 65W gallium nitride charger, Turas 30W 1A1C USB PD fast charger and other products, which have been highly recognized by customers.
The protocol chip is also from Nanxin, and the model is SC2151A. The chip is a controller that supports PD and DP/DM fast charging protocols in a 16-pin QFN 4*4mm package, with an integrated feedback loop that supports the latest Type-C and PD3.0 standards, as well as proprietary fast charging protocols that use the DP/DM interface for a variety of adapter applications.
The NANSIC SC2151A integrates a 32-bit high-performance MCU core with 24kB of single-pass programming memory and 2kB of RAM. The controller integrates USB PD physical layer, Type-C detection, DP/DM fast charging protocol physical layer for various fast charging protocols, and VCONN power supply.
In addition, the SC2151A provides a simple and efficient protocol controller solution for applications such as adapters by building an output discharge path, built-in programmable feedback compensation, voltage and current sensing, 10-bit high performance ADC, two 10-bit DACs, NMOS path tube drivers, I2C communication interfaces, and rich protection circuitry for fast charge adapter solutions. According to the charging head network, the chip has obtained USB-IF PD3.0 certification, TID: 4869.
The output VBUS switch tube adopts Weizhao Semiconductor VS3618AE. NMOS, withstand voltage 30V, conductivity 6.4mΩ, PDFN3333 package.
Wei Zhao Semiconductor VS3618AE data information.
USB-C output interface, using via welding, orange rubber core, end face does not expose copper.
All disassembled, let's take a family portrait.
Charging head net disassembly summary
The Black Shark Starstream GaN 30W fast charger adopts a compact body design, the interior uses three PCBs combined soldering, and the internal space utilization is high. The charger is compatible with QC, AFC, PD3.0, PPS fast charge protocol, with 5V3A, 9V3A, 12V2.5A, 15V2A, 20V1.5A five sets of complete voltage gears, as well as 3.3-11V3A and 3.3-16V2A two sets of PPS voltage files, the overall compatibility is very good, to meet the needs of major brands of Android mobile phones, tablet fast charging, but also to meet the iPhone series mobile phone fast charging.
The charging head network learned through disassembly that the charger adopts three circuit board combination welding, U-shaped structure design, and the interior is fixed with silicone filling. The primary capacitor jacket is insulated in one plastic shell, and the small plate at the output is hollowed out to reduce the volume. The charger adopts Nanxin Semiconductor SC3021D+SC3503+SC2151A full set of high-frequency QR gallium nitride fast charging solution, with Innosecco's second-generation gallium nitride power chip INN650DA04, using Yongming capacitor input and output filtering, reliable material.